Odpowiedzi

2009-11-21T18:21:30+01:00
[y³:(y²*y⁻³)]²:(y³)² = [y³: y⁻¹]² : y⁶ = (y⁴)² : y⁶ = y⁸ : y⁶ = y²
y² = (-2)² = 4
2009-11-21T18:25:00+01:00
[y³:(y²*y⁻³)]²:(y³)² =
= [y³:(y⁻¹)]²:(y³)² =
= [y⁴]²:(y³)² =
=y⁸:y⁶ =y²
(-2)²=4
2009-11-21T18:30:00+01:00